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Shoppers pass a promotional sign for 'Black Friday' sales discounts on Oxford Street in London, on November 25, 2016.
Black Friday is a sales offer originating from the US where retailers slash prices on the day after the Thanksgiving holiday. In the UK it is used as a marketing device to entice Christmas shoppers with the discounts at stores often lasting for a week. / AFP PHOTO / Justin TALLISJUSTIN TALLIS/AFP/Getty Images